Oxygen Sensor Replacement Estimate for Infiniti FX37

Infiniti FX37 Oxygen Sensor Replacement costs $221 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$207 to $249
Labor: $70 -$112
Parts: $137
Average Dealer price
$367 to 404
Average Shop price
$254 to 288
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2013 Infiniti FX37V6-3.7LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$245.88Shop/Dealer Price$318.43 - $456.02
2013 Infiniti FX37V6-3.7LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$215.14Shop/Dealer Price$276.96 - $404.97
Show example Infiniti FX37 Oxygen Sensor Replacement prices

Parts required for a Infiniti FX37 Oxygen Sensor Replacement

Meet some of our expert Infiniti mechanics

Real customer reviews from Infiniti owners like you.

450 reviews
Ben
36 years of experience
I could not be happier with Ben's work. He himself was professional and on time, but most importantly he did the work properly. I have sought automotive repair and maintenance from many sources including multiple dealers and I keep finding crooked and/or incompetent work being done, so it is a relief YourMechanic connected me with Ben. Having him come by and work on my car while I take care of my 4 month old and 3 year old daughters was a very big advantage, but the most important asset he brought was his decades of expertise in mechanical engineering. I cannot emphasize enough how hard it is to find someone who actually knows what they are doing. In the midst of a growing family and the responsibilities that come with it, having an honest go-to guy to take care of a large asset like my car is a huge relief. He helps me take care of my other baby.
2002 INFINITI I35 - OIL COOLER ADAPTER GASKET REPLACEMENT
Want Ben's expert advice? Ask your question now. Its free!
432 reviews
Patrick
22 years of experience
Patrick was awesome! He was on time, plus it was a very quick and pleasant experience. I'm so grateful for his help :)
2008 INFINITI G37 - CAR BATTERY REPLACEMENT
Want Patrick's expert advice? Ask your question now. Its free!
124 reviews
Jerel
6 years of experience
Jerel was very professional and knowledgeable. He was prompt and I would definitely recommend him.
1999 INFINITI QX4 - CAR IS NOT STARTING INSPECTION
Want Jerel's expert advice? Ask your question now. Its free!
77 reviews
Richard
6 years of experience
great job. Showed up on time. Did a great job. One of the most convenient and cost effective services I have used recently. It's like uber in the car repair space. Love it.
2002 INFINITI QX4 - SERPENTINE/DRIVE BELT REPLACEMENT
Want Richard's expert advice? Ask your question now. Its free!

All about Oxygen Sensor Replacement

With each new model year, manufacturers are adding more oxygen sensors to better manage engine operation. Some high performance engines have an oxygen sensor for each cylinder as well as one for the rear of each catalytic convertor. The sensors are located either underneath the hood or underneath the car. The oxygen sensors are connected (screwed) to the exhaust pipe, either in front or back of the catalytic converter. The front (upstream) sensors measure the amount of oxygen in the exhaust system. The purpose of the front oxygen sensor(s) is to measure how rich or lean the gases are as the gases exit the combustion chamber. Depending upon whether the exhaust gas is lean (high in oxygen content) or rich (low in oxygen content), the amount of fuel entering the engine is adjusted by the engine management computer to try and maintain an ideal mixture that produces the lowest emissions output from the catalytic convertor. Rear (downstream) sensors are located behind the catalytic converter. The purpose of the rear oxygen sensor(s) is to monitor the oxygen content of the exhaust gases leaving the catalytic convertor. If one or more of the oxygen sensors are faulty, your car may not pass the emissions test. If you drive your car with a faulty oxygen sensor, you may get poor gas mileage and it can damage the catalytic converter.

Oxygen Sensor Replacement Estimates for Popular Infiniti Models